1 files changed, 100 insertions, 0 deletions
diff --git a/nfvparser/toscaparser/elements/property_definition.py b/nfvparser/toscaparser/elements/property_definition.py
new file mode 100644
index 0000000..a242ddf
--- /dev/null
+++ b/nfvparser/toscaparser/elements/property_definition.py
@@ -0,0 +1,100 @@
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from toscaparser.common.exception import ExceptionCollector
+from toscaparser.common.exception import InvalidSchemaError
+from toscaparser.common.exception import TOSCAException
+from toscaparser.utils.gettextutils import _
+
+
+class PropertyDef(object):
+    '''TOSCA built-in Property type.'''
+
+    VALID_PROPERTY_KEYNAMES = (PROPERTY_KEYNAME_DEFAULT,
+                               PROPERTY_KEYNAME_REQUIRED,
+                               PROPERTY_KEYNAME_STATUS) = \
+        ('default', 'required', 'status')
+
+    PROPERTY_REQUIRED_DEFAULT = True
+
+    VALID_REQUIRED_VALUES = ['true', 'false']
+    VALID_STATUS_VALUES = (PROPERTY_STATUS_SUPPORTED,
+                           PROPERTY_STATUS_EXPERIMENTAL) = \
+        ('supported', 'experimental')
+
+    PROPERTY_STATUS_DEFAULT = PROPERTY_STATUS_SUPPORTED
+
+    def __init__(self, name, value=None, schema=None):
+        self.name = name
+        self.value = value
+        self.schema = schema
+        self._status = self.PROPERTY_STATUS_DEFAULT
+        self._required = self.PROPERTY_REQUIRED_DEFAULT
+
+        # Validate required 'type' property exists
+        try:
+            self.schema['type']
+        except KeyError:
+            msg = (_('Schema definition of "%(pname)s" must have a "type" '
+                     'attribute.') % dict(pname=self.name))
+            ExceptionCollector.appendException(
+                InvalidSchemaError(message=msg))
+
+        if self.schema:
+            self._load_required_attr_from_schema()
+            self._load_status_attr_from_schema()
+
+    @property
+    def default(self):
+        if self.schema:
+            for prop_key, prop_value in self.schema.items():
+                if prop_key == self.PROPERTY_KEYNAME_DEFAULT:
+                    return prop_value
+        return None
+
+    @property
+    def required(self):
+        return self._required
+
+    def _load_required_attr_from_schema(self):
+        # IF 'required' keyname exists verify it's a boolean,
+        # if so override default
+        if self.PROPERTY_KEYNAME_REQUIRED in self.schema:
+            value = self.schema[self.PROPERTY_KEYNAME_REQUIRED]
+            if isinstance(value, bool):
+                self._required = value
+            else:
+                valid_values = ', '.join(self.VALID_REQUIRED_VALUES)
+                attr = self.PROPERTY_KEYNAME_REQUIRED
+                TOSCAException.generate_inv_schema_property_error(self,
+                                                                  attr,
+                                                                  value,
+                                                                  valid_values)
+
+    @property
+    def status(self):
+        return self._status
+
+    def _load_status_attr_from_schema(self):
+        # IF 'status' keyname exists verify it's a valid value,
+        # if so override default
+        if self.PROPERTY_KEYNAME_STATUS in self.schema:
+            value = self.schema[self.PROPERTY_KEYNAME_STATUS]
+            if value in self.VALID_STATUS_VALUES:
+                self._status = value
+            else:
+                valid_values = ', '.join(self.VALID_STATUS_VALUES)
+                attr = self.PROPERTY_KEYNAME_STATUS
+                TOSCAException.generate_inv_schema_property_error(self,
+                                                                  attr,
+                                                                  value,
+                                                                  valid_values)